Legend, I think you're in denial, most of those 150 titles (checked it on IGN) are also coming to 360 and a lot also to Wii. I'm not saying PS3 has a bad line-up, there are a lot good games left, but:
a. PS3 will lose big time coming holiday and has lost since its release
b. MH3 move is only the first of this kind of anouncements
c. Combine a and b: more games will move to Wii
d. Most games are also on 360, EA games are better suited to 360
e. PS3's big guns are not coming soon (MGS4 April, FF 2009?)
f. 2007 line up will be of importance in 2008 (people will still buy Halo3, SMG, SSBB etc)
g. Wii exclusives (coming): SSBB, SMG, NiGHTs, Fatal Frame, Monster Hunter 3, No More Heroes, Soul Calibur: Legends, Super Mario Kart, RE: UC, Ghost Squad, Kings Story, FF:CC (2x)
Looks like a great line-up to me (maybe a 360 fan could post those games)







